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Hamilton 680
Basic Information
| Name | Hamilton 680 |
|---|---|
| Alternative Name | ETA 2512 |
| Base Calibre | ETA 2512 |
| Manufacturer | Hamilton |
| Launch Year | 1965 |
| Is COSC certified | No |
Timegrapher
Beat rate
21,600 bph
Frequency
3 Hz
Lift angle
0 degrees
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Technical Details
| Lignes Dimensions | 7.75 ‴ |
|---|---|
| Dimensions | 17.5 mm |
| Height | 2.85 mm |
| Further Measures | Mounting Diameter (Dm): 17.2mm Stem height (T): 1.5mm Mounting Height (F): 0.8mm |
| Power Reserve | 44 hours |
| Frequency | 21,600 vph |
| Jewels | 17 |
| Lift Angle | 0 degrees |
Complications and Specifications
| Shape | Round |
|---|---|
| Shock Protection | KIF |
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Manual |
| Escapement Type | Swiss Lever |
| Control Type | Balance Wheel |
| Winding Type | Stem Winding (Crown) |
| Setting Type | Stem Set (Crown Pull) |
Additional Information
| Hand Sizes | 1.20 x 0.60mm |
|---|---|
| Hand Count | 2 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: differences not known between 26, 261 no difference between 26, 680 Other data: balance staff: U2526 stem: W2772 mainspring / battery: Zf656, 1.20 x 7.5 x 0.085 x 230mm |
| Signature | ca. 1965: HYL, Hamilton 26, Hamilton Watch Co, 680, Swiss, 17 Jewels - Patented; Kif-Flector |
| Import Codes |
|
Compatible Parts
299 other caliber(s) share compatible parts with this caliber.
78 compatible part(s) available — Supporter feature.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | May 26, 2026, 4:43:51 AM |
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